org.quartz.listeners

Class BroadcastTriggerListener

java.lang.Object

org.quartz.listeners.BroadcastTriggerListener

All Implemented Interfaces:

TriggerListener

public class BroadcastTriggerListener
extends Object
implements TriggerListener

Holds a List of references to TriggerListener instances and broadcasts all events to them (in order).

The broadcasting behavior of this listener to delegate listeners may be more convenient than registering all of the listeners directly with the Scheduler, and provides the flexibility of easily changing which listeners get notified.

Author:

James House (jhouse AT revolition DOT net)

See Also:

addListener(org.quartz.TriggerListener), removeListener(org.quartz.TriggerListener), removeListener(String)

Constructor Summary

Constructors

Constructor and Description
BroadcastTriggerListener(String name) Construct an instance with the given name.
BroadcastTriggerListener(String name, List<TriggerListener> listeners) Construct an instance with the given name, and List of listeners.

Method Summary

Methods

Modifier and Type	Method and Description
void	addListener(TriggerListener listener)
List<TriggerListener>	getListeners()
String	getName() Get the name of the TriggerListener.
boolean	removeListener(String listenerName)
boolean	removeListener(TriggerListener listener)
void	triggerComplete(Trigger trigger, JobExecutionContext context, Trigger.CompletedExecutionInstruction triggerInstructionCode) Called by the Scheduler when a Trigger has fired, it's associated JobDetail has been executed, and it's triggered(xx) method has been called.
void	triggerFired(Trigger trigger, JobExecutionContext context) Called by the Scheduler when a Trigger has fired, and it's associated JobDetail is about to be executed.
void	triggerMisfired(Trigger trigger) Called by the Scheduler when a Trigger has misfired.
boolean	vetoJobExecution(Trigger trigger, JobExecutionContext context) Called by the Scheduler when a Trigger has fired, and it's associated JobDetail is about to be executed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BroadcastTriggerListener

public BroadcastTriggerListener(String name)

Construct an instance with the given name. (Remember to add some delegate listeners!)

Parameters:

name - the name of this instance

BroadcastTriggerListener

public BroadcastTriggerListener(String name,
                        List<TriggerListener> listeners)

Construct an instance with the given name, and List of listeners.

Parameters:

name - the name of this instance

listeners - the initial List of TriggerListeners to broadcast to.

Method Detail

getName

public String getName()

Description copied from interface: TriggerListener

Get the name of the TriggerListener.

Specified by:

getName in interface TriggerListener

addListener

public void addListener(TriggerListener listener)

removeListener

public boolean removeListener(TriggerListener listener)

removeListener

public boolean removeListener(String listenerName)

getListeners

public List<TriggerListener> getListeners()

triggerFired

public void triggerFired(Trigger trigger,
                JobExecutionContext context)

Description copied from interface: TriggerListener

Called by the Scheduler when a Trigger has fired, and it's associated JobDetail is about to be executed.

It is called before the vetoJobExecution(..) method of this interface.

Specified by:

triggerFired in interface TriggerListener

Parameters:

trigger - The Trigger that has fired.

context - The JobExecutionContext that will be passed to the Job'sexecute(xx) method.

vetoJobExecution

public boolean vetoJobExecution(Trigger trigger,
                       JobExecutionContext context)

Description copied from interface: TriggerListener

Called by the Scheduler when a Trigger has fired, and it's associated JobDetail is about to be executed. If the implementation vetos the execution (via returning true), the job's execute method will not be called.

It is called after the triggerFired(..) method of this interface.

Specified by:

vetoJobExecution in interface TriggerListener

Parameters:

trigger - The Trigger that has fired.

context - The JobExecutionContext that will be passed to the Job'sexecute(xx) method.

triggerMisfired

public void triggerMisfired(Trigger trigger)

Description copied from interface: TriggerListener

Called by the Scheduler when a Trigger has misfired.

Consideration should be given to how much time is spent in this method, as it will affect all triggers that are misfiring. If you have lots of triggers misfiring at once, it could be an issue it this method does a lot.

Specified by:

triggerMisfired in interface TriggerListener

Parameters:

trigger - The Trigger that has misfired.

triggerComplete

public void triggerComplete(Trigger trigger,
                   JobExecutionContext context,
                   Trigger.CompletedExecutionInstruction triggerInstructionCode)

Description copied from interface: TriggerListener

Called by the Scheduler when a Trigger has fired, it's associated JobDetail has been executed, and it's triggered(xx) method has been called.

Specified by:

triggerComplete in interface TriggerListener

Parameters:

trigger - The Trigger that was fired.

context - The JobExecutionContext that was passed to the Job'sexecute(xx) method.

triggerInstructionCode - the result of the call on the Trigger'striggered(xx) method.